1 General Provisions
1.0.1 This Code is formulated with view to regulating the installation of metallurgical dedusting machinery and equipment engineering, unifying the construction quality acceptance criteria and safeguarding the engineering installation quality.
1.0.2 This Code is applicable to the installation and quality acceptance of dedusting machinery and equipment engineering in the coking plant, refractory plant, sintered plant, ironworks, steelworks, continuous casting plant, rolling plant and power plant in the metallurgical engineering construction.
1.0.3 The variety, specification and performance of raw materials, semi-finished products and finished products used for installation engineering of metallurgical dedusting machinery and equipment must comply with the relevant current standards of the nation, and it is strictly prohibited to use the products explicitly ordered by the State to be eliminated.
1.0.4 The installation and quality acceptance of metallurgical dedusting machinery and equipment shall not only meet this Code but also comply with those in the current relevant ones of the nation.
2 Terms
2.0.1 Corona polar
Electrode of electrostatic deduster where high voltage direct current is applied to ionize the gas.
2.0.2 Precipitation polar
Electrode of electrostatic deduster collecting dust.
2.0.3 Air flow distribution orifice
Orifice allowing entrance flow being uniformly distributed on the cross-section of deduster.
2.0.4 Baffle board
Gas baffle set in the electric field to prevent air flow bypass (short circuit).
2.0.5 Decompression valve
Valve installed on the dedusting equipment, which can automatically open to relieve pressure in case of exceeding the specified pressure.
2.0.6 Cyclone
Tapered tube of rotating flow deflector, which can generate centrifugal force.
2.0.7 Tubesheet
Orifice fixing several filter bags, airways and outer sleeves.
2.0.8 Sintered plate
Deduster filter cartridge installed in the sintered plate deduster shell and used for filtering oily and dusty gas.
2.0.9 Wall column
Outer frame column of the deduster box structure.
2.0.10 Wall beam
Cross beam installed in the deduster box structure and connected with the outer frame column.
2.0.11 Bottom beam
Bottom supporting beam of the deduster box structure.
2.0.12 Filtering bag
Bag used to filter dust.
2.0.13 Bag basket
Keel supporting the filtering bag.
2.0.14 Throat
Contraction part of contraction tube and expansion tube in the Venturi tube.
2.0.15 Contraction tube
1 General Provisions
2 Terms
3 Basic Requirements
3.1 Installation
3.2 Quality Acceptance
4 Equipment Anchor Bolt and Bearing Plate
4.1 Installation
4.2 Quality Acceptance
5 Equipment, Structural Parts and Materials in Site
5.1 General Requirements
5.2 Site Acceptance
6 Equipment and Structural Parts Welding
6.1 Construction
6.2 Welding Quality Acceptance of Steel Structure
6.3 Welding Quality Acceptance of Body and Shell
7 Gravity Deduster
7.1 Installation
7.2 Quality Acceptance
8 Cyclone Deduster
8.1 Installation
8.2 Quality Acceptence
8.3 Quality Acceptance of the Cyclone
9 Bag-type Deduster
9.1 Installation
9.2 Quality Acceptance of the Frame
9.3 Quality Acceptance of the Body
9.4 Quality Acceptance of the Tubesheet and the Filtering Bag
9.5 Quality Acceptance of the Pulse De-ashing Device
10 Cylindrical Pulse Bag-type Deduster
10.1 Installation
10.2 Quality Acceptance
11 Sintered Plate Deduster
11.1 Installation
11.2 Quality Acceptance
12 Electrostatic Deduster
12.1 Installation
12.2 Quality Acceptance
12.3 Quality Acceptance of the Shell
12.4 Quality Acceptance of the Corona Polar and the Precipitation Polar Device
13 Wet Electrostatic Deduster
13.1 Installation
13.2 Quality Acceptance
14 Round Dry Electric Deduster
14.1 Installation
14.2 Quality Acceptance
15 Electric Bag Deduster
16 Venturi Tube Deduster
16.1 Installation
16.2 Quality Acceptance
17 Washing Tower and Dehydration Device
17.1 Installation
17.2 Quality Acceptance
18 Dedusting Equipment Test Run
18.1 General Requirements
18.2 Test Run of Main Equipment
18.3 Test Run of Valve Equipment
Appendix A Record of Sub-item Project Construction Acceptance for Metallurgical Dedusting Equipment
Appendix B Record of Sub-section Project Construction Acceptance for Metallurgical Dedusting Equipment
Appendix C Record of Construction Acceptance for Metallurgical Dedusting Equipment
Appendix D Record of Test Run without Load for Metallurgical Dedusting Equipment
Appendix E Record of Weld Heat Treatment for Metallurgical Dedusting Equipment
Explanation of Wording in This Code
List of Quoted Standards
